Seal and a tubular heat exchanger using such seal

Patent metadata

Field	Value
Publication number	US-11506286-B2
Application number	US-201816955836-A
Country	US
Kind code	B2
Filing date	Dec 18, 2018
Priority date	Dec 20, 2017
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A seal including a first portion having a first width that extends in a radial direction of the seal, a second portion that is joined with the first portion and having a second width that is smaller than the first width, and a first recess that is located in the first portion to reduce a width expansion of the first portion when the seal is compressed in an axial direction of the seal.

First claim

The invention claimed is:

1. A seal, comprising:
a first portion having a first width that extends in a radial direction of the seal,
a second portion that is joined with the first portion and having a second width that is smaller than the first width, and
a first recess that is located in the first portion to reduce a width expansion of the first portion when the seal is compressed in an axial direction of the seal, wherein the seal comprises in sequence,
an upper side section,
an outer side section,
a first lower side section,
a first inner side section,
a second lower side section, and
a second inner side section joining the upper side section and configured to face a product when the seal is arranged to provide sealing between two components, wherein:
the first recess forms a recess in the upper side section,
a first protrusion is arranged on the upper side section,
a second protrusion is arranged on the upper side section, at a location further away from the second inner side section than the first protrusion,
a second recess is located in the first portion to form a recess in the upper side section,
the second protrusion extends above the first protrusion in the axial direction, and
the first protrusion and the second protrusion are the only protrusions on the upper side section.

2. The seal according to claim 1 , comprising a third recess that is located in the first and second portions to form a recess in the outer side section.

3. The seal according to claim 1 , comprising a chamfered surface that joins the first lower side section and the first inner side section.

4. The seal according to claim 1 , comprising
a first flat section that is arranged on the outer side section, at a location where the upper side section joins the outer side section.

5. The seal according to claim 1 , comprising
a second flat section that is arranged on the first lower side section, at a location where the outer side section joins the lower side section, and has a length that is half of a length of the first lower side section.

6. The seal according to claim 1 , wherein the seal is a hygienic seal for food processing applications.

7. A tubular heat exchanger comprising the seal according to claim 1 .

8. The tubular heat exchanger according to claim 7 , wherein the seal is arranged with the second inner side section facing a product flow channel of the tubular heat exchanger.

9. The tubular heat exchanger according to claim 7 , wherein
the seal is arranged between a first element and a second element of the tubular heat exchanger,
the second element comprises a recess, and
the second portion of the seal is located in the recess of the second element.

10. The tubular heat exchanger according to claim 7 , wherein the first element comprises a tube package and the second element is a flange.

11. The seal according to claim 1 , wherein the upper side section has only two recesses which are the first and second recesses, in which only one of the two recesses is between the first and second protrusions.

Assignees

• Tetra Laval Holdings & Finance

Inventors

• Ström Pär
• Gullberg Magnus

Classifications

• F16J15/025 Primary

  and with at least one flexible lip · CPC title

• F16J15/106

  homogeneous · CPC title

• F28F9/26

  Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H9/14 {, connecting headers with inlet or outlet fittings F28F9/0246}) · CPC title

• F16J15/104

  characterised by structure · CPC title

• F16L23/18

  the sealing means being rings · CPC title